Description: Widen Belt Design with Brighter Effect: LED widen warning reflective vest provide double side LED lights strip and a reflective tapes that allows you to be visible from a distance of 300meter/985 feet, designed for your safety. USB Rechargeable: USB rechargeable for a long term service. Made of high quality elastic webbing materials,skin-friendly, comfortable for men, women and children. 3 Lighting Modes: This running vest has front and back double sides LED strips. Both sides of the LEDs have Fast Flash(once push) /Slow Flash(twice push)/Steady On(third push) three modes. Adjustable Reflective Running Vest: Lightweight and easy to wear, with adjustable buckles and an elastic strap, can be easily worn over on various kinds of clothing. The adjustment range for the waist band circumference is 64-105cm/25.20x41.34inch. Wide Application: Perfect for running,cycling, walking in the morning and evening, riding bicycle or motorcycle,steering traffic, children playing, directing traffic, engineering construction, etc. Specification: Materials: Webbing Stretch Belt Width: 4cm/1.57inch Reflective Belt Width: 1.5cm/0.59inch Adjustable Waistline: 64-105cm/25-41.4inch Adjustable Shoulder High:33-46cm/12.99-18.11inch Arm strap: 5cm/1.97inch Package Includes: 1 Piece Rechargeable LED Reflective Vest 2 Pieces Reflective Arm strap Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!